William H. Seely III

William H. Seely III
Nickname(s)Bill
BornSaigon, South Vietnam
AllegianceUnited States of America
Branch United States Marine Corps
Years of service1989–2025
Rank Major General
Commands3rd Reconnaissance Battalion
Marine Corps Intelligence
Battles / warsGlobal War on Terrorism

William H. Seely III is a retired major general in the United States Marine Corps who served as commandant of the Dwight D. Eisenhower School for National Security and Resource Strategy from July 2023 to April 2025. He most recently served as the Director of Marine Corps Intelligence from August 2021 to July 2023, and as the 35th Commandant of the Joint Forces Staff College from August 2020 to August 2021. In June 2024 he was named as the next commandant of the Virginia Tech Corps of Cadets. He took command on April 1, 2025.